div#rMenu {position:absolute; visibility:hidden; top:0;}
.tree-default-context {
    border: 1px solid silver;
    position: absolute;
    width: 160px;
}
.tree-default-context {
    z-index: 4;
}
.tree-context {
    left: -2000px;
    list-style-type: none;
    margin: 0;
    padding: 0;
    position: absolute;
    top: -2000px;
}

.tree-default-context a, .tree-default-context a.disabled:hover {
    -moz-border-bottom-colors: none;
    -moz-border-left-colors: none;
    -moz-border-right-colors: none;
    -moz-border-top-colors: none;
    background-color: transparent;
    background-position: 2px center;
    background-repeat: no-repeat;
    border-color: #f0f0f0;
    border-image: none;
    border-style: solid;
    border-width: 0 1px;
    color: black;
    display: block;
    line-height: 20px;
    margin: 0;
    padding: 1px 0 1px 25px;
    text-decoration: none;
}
.tree-default-context a:hover {
    background-color: #e7f4f9;
    border: 1px solid #d8f0fa;
    margin: 0;
    padding: 0 0 0 25px;
}